Precision of the power supply What information about the power supply is meant? Voltage AC180-240 volts Can this describe the precision of the product power supply?

AC180-240 identified on the appliance refers to the range of power supply voltage that the appliance is adapted to, meaning that the power supply voltage can be rectified to run between 180v-240.

And the power supply accuracy (should be nominal) is the range of fluctuation between the voltage of a certain power supply and the nominal value. For example, the nominal value of the AC mains used in our country is 220V, and the precision is ±10%, which means that the power supply voltage is qualified between 198V-242V.